On Sat, Aug 22, 2009 at 08:16:28PM -0400, Kevin O'Connor wrote:
There is a PCIv3 extension to the PMM interface that allows one to request permanent memory (memory reserved in the e820 map). SeaBIOS does not implement this, but it would not be too hard to add.
FYI - I just committed a patch to SeaBIOS git to support permanent PMM requests of high memory. I'm not sure if it will be helpful or not. Also, I don't have an easy way to test it, but I think it is correct.
http://git.linuxtogo.org/?p=kevin/seabios.git;a=commitdiff;h=0e9fd6155384da9...
-Kevin